Machine for trimming the canvas of reinforced insoles.



T- RINGENBACH;

MACHINE FOR TRIMMING THE CANVAS 0F REINFORCED INSOLES.

APPUCATION FILED FEB. 2!. 1915.

1,21 6A9? Patnted Feb. 20, 1917.

nu- Mums PE'rERs cu, Puom-Lrrna. WASHINGION. u c.

THEOBALI) RINGENBACH, OF ROSED ALEJ KENTUCKY.

MACHINE FOR TRIMMING THE CANVAS OF REINFORCED INSOLES.

, Specification of Letters Patent.

Patented Feb. 20, 1917.

Application filedrFebruary 21, 1916. ;Seria1.No. 79,538.

To all whom it may concern Be it known that I, THEOBALD RINGEN- nacrr, acitizen of the United States, and a resident of Rosedale, in the countyof Kenton and State of Kentucky, have invented certain new and, usefulImprovements in Machines for Trimming the Canvas of Reinforced Insoles,of which the following is a full, clear, and exact description,reference being had to the accompanying drawing, forming part of thisspecification.

In the manufacture of welt shoes, insoles are used which are reinforcedwith canvas.

The insoles are channeled, the lips turned up and a reinforcement ofcanvas is then applied and cemented in place. The canvas reinforce then.has to be trimmed off, and recently it has been sought to trim thecanvas inside the edge of the insole, instead of along the edges oftheinsole. To accomplish this, it is necessary to provide a trimmingknife that may beaceurately adjusted and which shall cut the canvas soas not to harm the underlying leather,

It is the object, therefore, of my invention to provide a constructionof an attachment for this purpose which can be readily and easilyattached to such atype of feathering machineas illustrated in Patent No.966,561, of August 9, 1910, issued to George J. Kilb and myself. y

In the drawings,

Figure 1 is a side elevation of the machine with my improvements appliedthereto.

Fig. 2 is a similar View somewhat enlarged, showing the trimmingattachment with the feed table in section.

Fig. 3 is a vertical transverse section, taken on the line 3, 3, of Fig.2.

Fig. 4 is a horizontal section, taken on the line 1, 4, of Fig. 2,showing a portion of the insole. I v

Fig. 5 is a plan view of the outer end of the table block carrying theroller plate.

The invention is intended to be applied to the general construction of Jfeathering machines such asset forthinrthe above mentioned patent, inwhich 1 represents the upper portion of a suitable framework, upon whichis mounted a table 2 for holding the operating parts. Suitably bolted tothis table 2is a plate 3, earryingthe vertical standards 4;, 5, with thestandard 5 provided with a forward extension 6. Suitably 10111- naled inthe upper end of these standards is the feed wheel shaft '7, which isheld in position by the collars 8, 9, secured by set screws and abuttingagainst the side faces of the standards. Mounted on one end of the feedshaft is a driving gear 10, driven by the driving pinion 11, mounted onthe driving shaft upon whiehthe usual tight and loose pulleys 12 aremounted for the driving belt.

A bracket plate 13 is secured in vertical position alongside of thestandard 5 by means of the horizontal extension plate 14, extendingrearward from the bracket and securely bolted to the. under surface ofthe table 2. This bracket is lin'ovided with the two forwardly extendingarms 15 and 16, suitably apertured at their outer ends to receiveandhold loosely a rod or shaft 17. A coiled spring 18 is mountedaround therod 17, with a bearing between the bracket arm 15 and the collar 19 heldin adjustable position by a set screw for tensioning the spring. Theupward movement of the rod 17 is limited by the collar 20 secured on thelower end of the, rod and bearing against the under surface of thebracket arm 15. The lower end of the rod 17 is provided with an eye 21for connecting the rod to a suitable foot treadle (not shown), so thatby depressing the foot treadle the rod 17 can be readily depressedagainst the tension of the spring 18;

So much of the machine as above described is similar. to that shown inthe above mentioned patent and forms no part of the present invention.

Mounted on the stud 23 on the upper end of the rod 17 in horizontalposition is a table block 22, and to guide the table block L as thefoottreadle is raised or lowered, the rear end of the block slides in asuitable guideway in the projection 25 from the bracket13. In the outerend of the table block 22 is, mounted a roller plate or disk 2-6, heldin place in a suitable depression in the table block by the screw 27,which engages the depending stem of the roller disk 26. The disk issupported on ball. bearings 28 so that it can rotate freely and easily.

Secured on top of the table block 22 is a guide plate 29, held inadjustable position by a slot andset screw connection 30, with anose 31of the guide plate extending forwardly almost to the periphery of theroller disk 26. This guide plate serves as a guide underneath the feedwheel shaft 7, and the cutting knife 36 is secured at the lower end ofthe plate by the set screw 37 which bears against the shank of the knifewhich is turned at right angles and inserted in a hole inthe lower endof the bracket, 50- that it can be readily removed for sharpening.Mounted on the outer end of-the feed wheel shaft 7 is the feed wheel 39,provided with a knurled periphery a0 and preferably beveled on its outersurface. Thecutting edge of the cutting knife is located in a verticalplane with the axis of rotation of both the feed wheel shaft 7. and theroller plate 26, and the parts are soadjusted that there is only aclearance of about one-sixtyfourth of an inch between the periphery ofthe feed wheel and the cutting edge and about onethirtysecond of an inchbetween the periphery of the roller plate and the cutting dge:

For cutting the canvas 42 from the insole ll, the table block 22 isdepressed to allow the insertion of the insole underneath the feed wheelwith the lips uppermost, with the'beyel of the feed wheel bearingagainst the outer surface of the lip 43. The edge of the insole is fedagainst the guide plate, and the parts are so adjusted that the knifewill cut through the canvas inside the feather of the insole withoutcutting theinsole itself. The .freely moving roller disk 26, m0unted onthe upwardly spring-pressed table block in connection with'therelatively fixed feed 'wheel permits the work to be 7 i rapidly fedtothe, cutting knife.

; I donot Wish to be limited in the claims that follow to the exactstructure described in the foregoing specification, as the descriptionrefers but .to the preferred form of my invention; on the contrary, Iwish to be entitled to the full scope of'the doctrine of equivalents inthe. construction of my claims. Also Ido not wish to belimited in mclaims because of my failure at this time to appreciate the fullusefulness of my invention, as I intend it to be used in the future inany manner that may turn out to be economical andconvenient, and thatmore mechanical changes necessary to adapt it to feed wheel and acutting knife held in relatively fixed position, with the bearing edgeof the feed wheel and the cutting edge of the knife in substantially thesame vertical plane, and an upwardly spring-pressed nonrotatable tableblock upon which the insoles are fed, the table block provided with aflat roller 'disk'mounted idly thereon to rotate freely and easily,parallel with. the top surface of the block, and a guide plate mountedon the block to guide the insole to the knife.

2. In a machine of the class described, a feed wheel and a cutting knifeheld in relatively fixed position, with the bearing edge of the feedwheel and the cutting edge of the knife in substantially the samevertical plane in close proximity to each other, and an upwardlyspringpressed lmn-rotatablc table block upon which the insoles are fed,the table block provided with a fiat roll or disk mounted idly thereonto rotate freely and easily parallel with the top surface of the blockon an axis in the same vertical plane with the axis of the feed wheel,and a guide plate mounted on the block to guide the insole to the knife.

3. In a machine of the class described. a feed wheel and a cutting knifeheld in relatively, fixed position, with the bearing edge of the feedwheel and the cutting edge of the knife in substantially the samevertical plane in close proximity to each other, and

an upwardly spring-pressed non-rotatable Y the disk.

4. In a machine of the class described, a feed wheel and a cutting knifeheld in relatively fixed position, a table upon which insoles are fed,the table provided with a flat roller disk mounted idly thereon torotate freely and easily, parallel with the top surface of the table,and a guide plate mounted on the table to guide the insole tothe knife.

, THEOBALD RINGENBACl-I.

Gopies of this patnt maybe obtained for five cents each, by addressingthe f Commissioner of Patents,

' Washington, D. G.

